Vulnerability CVE-2010-4020

Vulnerability CVE-2010-4020

Published: 2010-12-02 Modified: 2012-02-13

Description:

MIT Kerberos 5 (aka krb5) 1.8.x through 1.8.3 does not reject RC4 key-derivation checksums, which might allow remote authenticated users to forge a (1) AD-SIGNEDPATH or (2) AD-KDC-ISSUED signature, and possibly gain privileges, by leveraging the small key space that results from certain one-byte stream-cipher operations.

See advisories in our WLB2 database:

	Topic	Author	Date
Med.	MIT krb5 Security Advisory - Multiple checksum handling vulnerabilities	Tom Yu	03.12.2010

Type:

CWE-310

(Cryptographic Issues)

CVSS2 => (AV:N/AC:M/Au:S/C:N/I:P/A:N)

CVSS Base Score	Impact Subscore	Exploitability Subscore
3.5/10	2.9/10	6.8/10

Exploit range	Attack complexity	Authentication
Remote	Medium	Single time
Confidentiality impact	Integrity impact	Availability impact
None	Partial	None

Affected software
MIT -> Kerberos

References:

http://kb.vmware.com/kb/1035108

http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html

http://lists.fedoraproject.org/pipermail/package-announce/2010-December/051976.html

http://lists.fedoraproject.org/pipermail/package-announce/2010-December/051999.html

http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html

http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html

http://lists.vmware.com/pipermail/security-announce/2011/000133.html

http://support.apple.com/kb/HT4581

http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txt

http://www.mandriva.com/security/advisories?name=MDVSA-2010:246

http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html

http://www.redhat.com/support/errata/RHSA-2010-0925.html

http://www.securityfocus.com/archive/1/514953/100/0/threaded

http://www.securityfocus.com/archive/1/517739/100/0/threaded

http://www.securityfocus.com/bid/45117

http://www.securitytracker.com/id?1024803

http://www.ubuntu.com/usn/USN-1030-1

http://www.vmware.com/security/advisories/VMSA-2011-0007.html

http://www.vupen.com/english/advisories/2010/3094

http://www.vupen.com/english/advisories/2010/3095

http://www.vupen.com/english/advisories/2010/3118

Vulnerability CVE-2010-4020

See advisories in our WLB2 database:

Med.

MIT krb5 Security Advisory - Multiple checksum handling vulnerabilities

CWE-310

CVSS2 => (AV:N/AC:M/Au:S/C:N/I:P/A:N)

3.5/10

2.9/10

6.8/10

Remote

Medium

Single time

None

Partial

None

Affected software

References: